Need help installing Hella Supertone horns
Need help installing Hella Supertone horns
okay so long story short i wanted to put these in (2000max btw).. well i thought it would be unplug OEM, pulg into hella and bingo.. louder horn.. yeah i was wrong..that = no sound... so im basically stumped and if anyone could throw some advice my way i would appreciate it...i drive about 70 miles round trip to work and theres alot of idiots on the highway that like to merge without looking and i need a louder horn.. so please help ..
Did you have the hellas mounted when you pluged them in? Sometimes they use the frame of your car as there ground. So once you plug them in touch them to the metal frame of your car or where you want to mount them and as long as you have a good ground they should work. Our cars look exactly the same by the way.
well then you have good taste..lol... yeah i thought about that after i gave up on the whole ordeal.. well thanks for the advice.. i guess ill give that a go next time i play with the car and see what happens..
alright.. thanks i appreciate it.. i guess ill run a really good ground to them and see what happens.. in theroy.. all i would need was the orig. + connection and a good ground and they should work right?
well they work..I needed to run a neg- to the battery for some reason i couldnt get anything on the frame to work but the battery solved the trick..and holy crap are they loud..so much louder then anything stock..i recommend anyone that doesnt have these to get them.. took 10-15 mins to install once i figured out what wasnt working..well worth the 50-60 bucks that i paid..the way i look at it.. if 50 bucks worth of noisemakers can stop thousands of dollars in damage from some idiot hitting me then why not..
did it come with a relay? if it didn't, it should have. i highly suggest using a relay. the hellas withdraw much more amperage than the lousy stock horns do. and wiring a relay is a cinch.
IIRC there shouldnt be any need for the relay. i didn't use mine. just power and ground.
that's why i asked if his came with a relay, which it should have. if it's there, then it should be installed. even for some horn kits that don't have a relay included, the instructions say how to wire it with a relay. they're cheap, can be found at any electronics store, and easy to wire. these horn kits, especially the hellas, need more current to operate, so why risk frying the stock wiring? use a relay.
that's why i asked if his came with a relay, which it should have. if it's there, then it should be installed. even for some horn kits that don't have a relay included, the instructions say how to wire it with a relay. they're cheap, can be found at any electronics store, and easy to wire. these horn kits, especially the hellas, need more current to operate, so why risk frying the stock wiring? use a relay.
so how would u wire the relay.. lets say there were 4 points on the bottom of the relay?...
30 - wired with an inline fuse to the battery.
85 - frame ground.
86 - stock horn wire.
87 - to hella horns.
make sure to ground the hellas themselves as well. i forgot what amp my fuse is, but 15 amps should be sufficient. i used 12 ga wire all over as well. and lots of electrical tape. hope this helps and good luck with the install.
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MaxLife17
8th Generation Maxima (2016-)
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Jun 27, 2019 01:37 PM




lol i know i know.. but there the real deal and it was from a co. on there...im going to install them today and ill keep you updated..
